為了得到負(fù)阻值性質(zhì)的電路元件，采用正電阻與運(yùn)算放大器進(jìn)行搭建的方法。對(duì)搭建構(gòu)成的負(fù)電阻和負(fù)電阻的串并聯(lián)連接以及負(fù)電阻和正電阻的串并聯(lián)連接進(jìn)行了理論推導(dǎo)和Multisim仿真實(shí)驗(yàn)，兩種方法的結(jié)果一致且證明搭建構(gòu)成的電路元件具有負(fù)電阻的特性。給出了一個(gè)負(fù)電阻的應(yīng)用實(shí)例。得出了在存在負(fù)電阻的電阻串并聯(lián)等效變換中，負(fù)電阻的處理方法與正電阻一致的結(jié)論。

　　Abstract:

　　In order to get the circuit elements with negative resistance properties， combined with positive resistance and operational amplifiers. To do the theoretical derivation and multisim simulation experiments for the series and parallel connection between negative resistors and the connection between negative resistance and positive resistance. Results of the two methods are consistent. And proof of the device has negative resistance properties. The conclusion that the equivalence transformation of circuits with negative resistors is the same as that of the circuits with only positive resistors is drawn. The instance of application of negative resistor is offered.